Outer coding methods for broadcast/multicast content and related apparatus
First Claim
1. A method of creating a variable row size outer code block having a plurality of rows, comprising:
- receiving rows of user information over a radio bearer, wherein the size of the rows of user information varies based on an application;
once all rows of user information are received, determining a variable outer code block row size, based on the amount of user information received, wherein the size of the outer code block transmitted during a transmission timing interval varies based on the outer code block row size;
segmenting and concatenating rows of user information to fit within variable-size outer code block rows;
placing the rows of user information into outer code block rows to generate information blocks;
adding at least one length indicator to each outer code block row to indicate that a row of user information ends within the outer code block row occupied by that information block, wherein the rows of user information fully occupy the plurality of outer code block rows, and wherein a encoder packet comprises the information blocks and length indicators;
extracting a portion of each encoder packet to obtain extracted information;
encoding the extracted information to generate rows of redundancy information;
adding the rows of redundancy information to the encoder packet to generate an outer code block having the variable row size; and
transmitting the encoder packet.
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Accused Products
Abstract
Transmission techniques are provided that improve service continuity and reduce interruptions in delivery of content that can be caused by transitions that occur when the User Equipment (UE) moves from one cell to the other, or when the delivery of content changes from a Point-to-Point (PTP) connection to a Point-to-Multipoint (PTM) connection in the same serving cell, and vice-versa. Such transmission techniques enable seamless delivery of content across cell borders and/or between different transmission schemes such as Point-to-Multipoint (PTM) and Point-to-Point (PTP). Mechanisms for adjusting different streams and for recovering content from each data block during such transitions are also provided so that data is not lost during a transition. In addition, mechanisms for realigning data during decoding at a receiving terminal are also provided.
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Citations
9 Claims
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1. A method of creating a variable row size outer code block having a plurality of rows, comprising:
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receiving rows of user information over a radio bearer, wherein the size of the rows of user information varies based on an application; once all rows of user information are received, determining a variable outer code block row size, based on the amount of user information received, wherein the size of the outer code block transmitted during a transmission timing interval varies based on the outer code block row size; segmenting and concatenating rows of user information to fit within variable-size outer code block rows; placing the rows of user information into outer code block rows to generate information blocks; adding at least one length indicator to each outer code block row to indicate that a row of user information ends within the outer code block row occupied by that information block, wherein the rows of user information fully occupy the plurality of outer code block rows, and wherein a encoder packet comprises the information blocks and length indicators; extracting a portion of each encoder packet to obtain extracted information; encoding the extracted information to generate rows of redundancy information; adding the rows of redundancy information to the encoder packet to generate an outer code block having the variable row size; and transmitting the encoder packet. - View Dependent Claims (2, 3)
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4. A computer program product comprising a computer-readable medium including codes for causing a computer to:
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receive rows of user information over a radio bearer, wherein the size of the rows of user information varies based on an application; once all rows of user information are received, determine a variable outer code block row size, based on the amount of user information received, wherein the size of the outer code block transmitted during a transmission timing interval varies based on the outer code block row size; segment and concatenate rows of user information to fit within variable-size outer code block rows; place the rows of user information into outer code block rows to generate information blocks; add at least one length indicator to each outer code block row to indicate that a row of user information ends within the outer code block row occupied by that information block, wherein the rows of user information fully occupy the plurality of outer code block rows, and wherein a encoder packet comprises the information blocks and length indicators; extract a portion of each encoder packet to obtain extracted information; encode the extracted information to generate rows of redundancy information; add the rows of redundancy information to the encoder packet to generate an outer code block having the variable row size; and send the encoder packet. - View Dependent Claims (5, 6)
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7. A communications apparatus for creating a variable row size outer code block having a plurality of rows, comprising:
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a memory; a processor module coupled to the memory, said processor module configured to; receive rows of user information over a radio bearer, wherein the size of the rows of user information varies based on an application; once all rows of user information are received, determine a variable outer code block row size, based on the amount of user information received, wherein the size of the outer code block transmitted during a transmission timing interval varies based on the outer code block row size; segment and concatenate rows of user information to fit within variable-size outer code block rows; place the rows of user information into outer code block rows to generate information blocks; add at least one length indicator to each outer code block row to indicate that a row of user information ends within the outer code block row occupied by that information block, wherein the rows of user information fully occupy the plurality of outer code block rows, and wherein a encoder packet comprises the information blocks and length indicators; extract a portion of each encoder packet to obtain extracted information; encode the extracted information to generate rows of redundancy information; add the rows of redundancy information to the encoder packet to generate an outer code block having the variable row size; and a transmitter module configured to send the encoder packet. - View Dependent Claims (8, 9)
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Specification